RHSA-2021:2204HighCVSS 9.8

Red Hat Security Advisory: glib2 security update

Published
June 2, 2021
Last Modified
October 14, 2026

🔗 CVE IDs covered (1)

CVE-2021-27219 →

📋 Description

CVE-2021-27219 — glib: integer overflow in g_bytes_new function on 64-bit platforms due to an implicit cast from 64 bits to 32 bits

🎯 Affected products86

  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6)
  • Red Hat Enterprise Linux Server EUS (v. 7.6)
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.6)
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)
  • glib2-0:2.56.1-5.el7_6.i686 as a component of Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.i686 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.ppc as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.ppc64 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.ppc64le as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.ppc64le as a component of Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)
  • glib2-0:2.56.1-5.el7_6.s390 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.s390 as a component of Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)
  • glib2-0:2.56.1-5.el7_6.s390x as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.s390x as a component of Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)
  • glib2-0:2.56.1-5.el7_6.src as a component of Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.src as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.src as a component of Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)
  • glib2-0:2.56.1-5.el7_6.x86_64 as a component of Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)
  • glib2-0:2.56.1-5.el7_6.x86_64 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-debuginfo-0:2.56.1-5.el7_6.i686 as a component of Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)
  • glib2-debuginfo-0:2.56.1-5.el7_6.i686 as a component of Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6)
  • glib2-debuginfo-0:2.56.1-5.el7_6.i686 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-debuginfo-0:2.56.1-5.el7_6.i686 as a component of Red Hat Enterprise Linux Server Optional EUS (v. 7.6)
  • glib2-debuginfo-0:2.56.1-5.el7_6.ppc as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-debuginfo-0:2.56.1-5.el7_6.ppc as a component of Red Hat Enterprise Linux Server Optional EUS (v. 7.6)
  • glib2-debuginfo-0:2.56.1-5.el7_6.ppc64 as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • glib2-debuginfo-0:2.56.1-5.el7_6.ppc64 as a component of Red Hat Enterprise Linux Server Optional EUS (v. 7.6)
  • glib2-debuginfo-0:2.56.1-5.el7_6.ppc64le as a component of Red Hat Enterprise Linux Server EUS (v. 7.6)
  • +56 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258

🔗 References (4)